Re: [PATCH 5.10 23/49] ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807

Pavel Machek
2021-03-10T20:05:03Z

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Hi!

> From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>
> From: Jasper St. Pierre <jstpierre@mecheye.net>

Something is funny with the From header here. But that's not main
thing -- this patch is evil.

> Unfortunately, the backlight controller only confuses userspace, which
> sees the existence of a backlight device node and has the unrealistic
> belief that there is actually a backlight there!

> +++ b/drivers/acpi/video_detect.c
> @@ -140,6 +140,13 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
> },
> {
> .callback = video_detect_force_vendor,
> + .ident = "GIGABYTE GB-BXBT-2807",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
> + DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"),
> + },
> + },
> + {
> .ident = "Sony VPCEH3U1E",
> .matches = {
> DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),

Yup, and it looks like this fixes the problem for GIGABYTE
GB-BXBT-2807 but re-introduces the problem for Sony VPCEH3U1E.

Best regards,

Pavel
--
http://www.livejournal.com/~pavelmachek

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